Home / 764,430.90-1,146,755.70-231,993.60

Finding the Fourth Proportional to 764,430.90, 1,146,755.70 and 231,993.60

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Solution

The fourth proportional to 764,430.90, 1,146,755.70 and 231,993.60 is: 348,023.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,430.90 : 1,146,755.70 = 231,993.60 : x
  2. Step 2: Convert to fraction form
    764,430.90/1,146,755.70 = 231,993.60/x
  3. Step 3: Cross multiply
    764,430.90x = 1,146,755.70 × 231,993.60
  4. Step 4: Simplify right side
    764,430.90x = 266,039,983,163.52
  5. Step 5: Solve for x
    x = 266,039,983,163.52/764,430.90
  6. Step 6: Final answer
    x = 348,023.59

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.